Search for dissertations about: "artifacts"

Showing result 1 - 5 of 280 swedish dissertations containing the word artifacts.

  1. 1. Electron microscopy and microanalysis of polymers and polymer blends : artifacts and applications

    Author : Henrik Lindberg; Luleå tekniska universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Polymera konstruktionsmaterial; Polymeric Composite Materials;

    Abstract : Electron microscopy and microanalysis is used to examine the degradation of unstainable polymers and polymer blends in order to gain an understanding and arrive at methods for characterizing microstructures. Several methods have been used in order to obtain complementary ways of establishing artifacts arising from specimen preparation effects, the internal energy of the components, and degradation under the electron beam together with low or zero contrast between phases in a blend. READ MORE

  2. 2. Artifacts and Supraphysical Worlds : A Conceptual Analysis of Religion

    Author : Johan Modée; Centrum för teologi och religionsvetenskap; []
    Keywords : HUMANIORA; HUMANITIES; HUMANIORA; HUMANITIES; Philosophy of special sciences; Two-dimensionality; Supraphysical worlds; Possible worlds; Global supervenience; Physicalism; Tools; Symbols; Rituals; Representations; Proper funtion; Artifacts; Definition of religion; Conceptual analysis; Särskilda vetenskapers filosofi; religion; concept; artifact; physicalism; global supervenience; representations; a priori;

    Abstract : It is a contested question in contemporary theories of religion whether the concept of religion can be defined in a sound way or not. Many theorists maintain that a universal but delimiting definition is impossible. READ MORE

  3. 3. Metal artifacts in computed tomography : impact of reduction methods on image quality and radiotherapy treatment planning

    Author : Karin Andersson; Per Thunberg; Eva Norrman; Jan Persliden; Anders Tingberg; Örebro universitet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; computed tomography; metal artifacts; image quality; visual grading analysis; radiotherapy; proton therapy; hip prosthesis; dental implants;

    Abstract : Degradation of image quality by metal artifacts is a common problem in computed tomography (CT) imaging, which can limit the diagnostic value of a CT examination and also introduce inaccuracies in radiotherapy (RT) treatment planning. In recent years, commercial metal artifact reduction (MAR) methods have been launched by several CT vendors. READ MORE

  4. 4. The cognitive use of artifacts in cooperative process management : Rescue management and underground line control

    Author : Christer Garbis; Linköpings universitet; []
    Keywords : SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Cognitive artifacts; distributed cognition; cooperative process management; cognitive ethnography; centers of coordination; customization; cognitive system; computer supported cooperative work; ecology of cognitive artifacts; Kognitiva processer; INTERDISCIPLINARY RESEARCH AREAS; TVÄRVETENSKAPLIGA FORSKNINGSOMRÅDEN;

    Abstract : Work performed in various types of centers of coordination is highly dynamic and requires that a team continuously take actions and make multiple decisions in real time. This type of Work is here refered to as cooperative process management. READ MORE

  5. 5. 3D Rotational Angiography of Transplanted Renal Arteries : A Clinical and Experimental Study

    Author : Gaute Hagen; Anders Magnusson; Jonas Wadström; Jarl Jakobsen; Uppsala universitet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Radiology; Kidney; transplantation; renal angiography; renal arteries; stenosis or obstruction; imaging; three-dimensional; artifacts; Radiologisk forskning; Radiological research; Radiologisk forskning;

    Abstract : Three-dimensional rotational angiography (3D-RA) is an established method within the field of interventional neuroradiology. The method has also a great potential in other areas with a complicated arterial anatomy. READ MORE